[in-val-i-deyt] /ɪnˈvæl ɪˌdeɪt/
verb (used with object), invalidated, invalidating.
to render ; discredit.
to deprive of legal force or efficacy; nullify.
to render weak or ineffective, as an argument
to take away the legal force or effectiveness of; annul, as a contract
1771, noun of action from invalidate (v.).
1640s, from invalid + -ate (2). Related: Invalidated; invalidating.
[in-vuh-li-diz-uh m] /ˈɪn və lɪˌdɪz əm/ noun 1. prolonged ill health. /ˈɪnvəlɪˌdɪzəm/ noun 1. the state of being an invalid, esp by reason of ill health 2. a state of being abnormally preoccupied with one’s physical health
[in-vuh-lid-i-tee] /ˌɪn vəˈlɪd ɪ ti/ noun 1. lack of validity. [in-vuh-lid-i-tee] /ˌɪn vəˈlɪd ɪ ti/ noun 1. . n. 1540s, from Latin invalidatus (see invalid (adj.)).
- Invalidity benefit
noun 1. (formerly, in the British National Insurance scheme) a weekly payment to a person who had been off work through illness for more than six months: replaced by incapacity benefit in 1995 IVB
[in-val-id] /ɪnˈvæl ɪd/ adjective 1. not valid; without force or foundation; indefensible. 2. deficient in substance or cogency; weak. 3. void or without legal force, as a contract. /ˈɪnvəˌliːd; -lɪd/ noun 1. adjective 2. suffering from or disabled by injury, sickness, etc verb (transitive) 3. to cause to become an invalid; disable 4. (usually foll […]